import fs from 'fs';
// const fs=require('fs');
const readStream=fs.createReadStream('./aaa.txt',{
    start:8,
    end:22,
    highWaterMark:3
});
readStream.on('data',(data)=>{
    console.log(data.toString());
    readStream.pause();
    setTimeout(()=>{
        readStream.resume();
    },2000);
});